Segment Reporting Segment Reporting Information by Item Category (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Feb. 17, 2019	Feb. 18, 2018	Feb. 17, 2019	Feb. 18, 2018
Disaggregation of Revenue [Line Items]
Total Revenue	$ 35,396	$ 32,995	$ 70,465	$ 64,804
Food and Sundries [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	13,966		27,607
Hardlines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	5,770		11,610
Fresh Food [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	4,690		8,983
Softlines [Member]
Disaggregation of Revenue [Line Items]
Total Revenue	4,224		8,347
Ancillary
Disaggregation of Revenue [Line Items]
Total Revenue	5,978		12,392
Net sales
Disaggregation of Revenue [Line Items]
Total Revenue	$ 34,628	$ 32,279	$ 68,939	$ 63,396